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29342689 = 166917581
BaseRepresentation
bin110111111101…
…1101111100001
32001012202121021
41233323233201
530002431224
62524525441
7504260125
oct157735741
961182537
1029342689
1115621662
1299b0881
136104a4c
143c7b585
1528991e4
hex1bfbbe1

29342689 has 4 divisors (see below), whose sum is σ = 29361940. Its totient is φ = 29323440.

The previous prime is 29342681. The next prime is 29342699. The reversal of 29342689 is 98624392.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11424400 + 17918289 = 3380^2 + 4233^2 .

It is a cyclic number.

It is not a de Polignac number, because 29342689 - 23 = 29342681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29342681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7122 + ... + 10459.

It is an arithmetic number, because the mean of its divisors is an integer number (7340485).

Almost surely, 229342689 is an apocalyptic number.

It is an amenable number.

29342689 is a deficient number, since it is larger than the sum of its proper divisors (19251).

29342689 is a wasteful number, since it uses less digits than its factorization.

29342689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19250.

The product of its digits is 186624, while the sum is 43.

The square root of 29342689 is about 5416.8892364530. The cubic root of 29342689 is about 308.4371182802.

The spelling of 29342689 in words is "twenty-nine million, three hundred forty-two thousand, six hundred eighty-nine".

Divisors: 1 1669 17581 29342689